A presentation on Tunnel Radio of America's industry-leading MineAx wireless tracking and communication system for mines.

1. MineAx™Wireless RFIDMiner Tracking System We work where you work!

2. MSHA APPROVED

3. Complete and Simple TWO PROBLEMS… PERSONNEL TRACKING MINEWIDE COMMUNICATIONS ONE SOLUTION

4. Complete and Simple TWO SYSTEMS… PERSONNEL TRACKING MINEWIDE COMMUNICATIONS ONE CABLE

5. Network Functionality

6. Communications Overview UltraComm System

8. Tunnel Radio Underground Communications To Mine A/C Power Supply

9. UltraComm Communications USA Patent No. 6,195,561

11. Fully Mine Tested

12. Simple to Install

14. Fully Digital Capable

15. Network Compatible

16. Multi-Channel Capable

17. Enhanced Range for Emergency Use

18. Emergency Operational Features

20. Digital TrackingOverview MineAx System

22. Tunnel Radio Underground Communications and TRACKING To Mine A/C Power Supply

23. Typical Coal Installation Three entrances covered with a Triple Port Reader and the TR-PS-8 Power Supply Fresh Air Miner Pillar TR-PS-8 Neutral Air TR-MX-332C-3 Mine Main Entrance Miner Return Air Miner

24. Normal Tag Operation

25. One unit per installation Located outside mine Polls reader units Retrieves data and sends to tracking server Stores incoming data Tracking Head End Unit

26. Personnel Tag Small Lightweight Portable Versatile Vehicle / Asset Tag Dimensions: 2.0” x 2.75” x .8” Personal Tag Dimensions: 1.6” x 2.6” x .8” Small enough to put almost anywhere on an asset or vehicle

27. Wireless Reader for Tracking Tag signals are collected via a locally mounted antenna Stores incoming tag data Emergency Flasher – can be activated from server or remotely connected computer Network compatible

29. Emergency Flasher

31. Power Supply Dimensions: 11” x 14” x 5.5” Weight: 17.5 lbs Voltage: 120 VAC input MSHA Approval :#23-A100002-0 TR-PS-8

32. Power Alternatives AC Power Battery Power AC-DC power with internal battery back-up 12v DC intrinsically safe (IS) power 24 hour battery back up Explosion-proof enclosure Battery powered using UL rated 3.6 v DC LiON battery pack (90 day) DC output is protected by fuse / resistor combination to assure IS permissibility LED and data provisions include low battery warning

33. Dual Reader / Single Power SupplyWiring Diagram

34. Digital TrackingSoftware Features MineAx System

35. Network Functionality

37. MineAx digital tracking

38. Network connectivity

39. Remote (web-based) monitoring, access and control

40. Control and monitoring capabilities for lights, fans, stench release, etc.

42. Easily edit employee information

43. Quickly add or change tag assignments

44. Search by name, description, or tag ID

45. Detailed history reports – by zone, or individual

46. Emergency warning signal

47. Low battery indicators

49. Easily access or edit employee information

50. Detailed history reports – by individual

51. Detailed history reports – by zone

52. Search by name, description, SSN or tag ID

53. System Alerts – including low battery indicators

54. Emergency Warning Signal

55. MineAx™ “Bird-Dog” Tracking Wirelessly transmits the location of every person and asset in your mine back to the surface Compatible with TR UltraComm ‘backbone’ Full featured software – includes history and mapping capabilities Tag read range: 50’ – 400’ Wireless readers provide maximum flexibility Battery ‘sleep’ mode capable Low battery warning Emergency warning signal lights Simple to install and maintain

56. Complete and Simple TWO PROBLEMS… PERSONNEL TRACKING MINEWIDE COMMUNICATIONS ONE SOLUTION

57. Complete and Simple TWO SYSTEMS… PERSONNEL TRACKING MINEWIDE COMMUNICATIONS ONE CABLE

58. Alpha Natural Resources Amfire Mining Company Barrick Gold Corp. Blue Mountain Energy Carmeuse Lime & Stone Coeur Mining Hecla Mining Company Newmont Mining Corp. Teck Cominco A few of our customers…

59. All readers are enclosed in an IP66 and UL rated dust and waterproof sealed fiberglass box, capable of surviving impact damage. IS power for reader unit is derived from two independent means – AC and battery Main reader board is thermally protected using a solder connected fast blow fuse. Intrinsic Safe Design

60. The following products are MSHA Approved and may be used with Tunnel Radio Communications and Tracking Systems UHF Amplifier UHF Splitter – 3 way, or 4 way UHF Splice Box UHF End Cable Box Tunnel Management System Card Surge Protection – Line Suppressor Explosion Proof Enclosure Barrier Connection Cable Hi-Performance Radiating Cable Air Wall Cable Foam Cable Yellow Cable Coax Cable Portable Radio Directional Antenna Dipole Antenna Conrad Antenna Power Barrier Unit Power Insert Power Supply Battery Portable Radio Personnel Tag Wireless Tracking Reader

62. “A wireless mine... is a safer mine!”